Automatic speed-changing device for tabulating machines



R. E. PAGE Oct. 7, 1930.

ATOMATIC SPEED CHANGING DEVICE FOR TABULATING MACHINES- Filed June 25,1925 4 sheets-sheen (g4/Wentorot.7, 1930. vR E PAGE 7 1,777,890

AUTOMATIC SPEED CHANGING DEVICE FOR TABULATING MACHINES Oct. 7, 1930. vR. E. PAGE '1,777,890

AUTMTIC SPEED CHANGING DEVICE FOR TABUL'IINGV MACHINES Filed June 23,1925 4 Sheets-Sheet 3 @5v *hay Hmmm@ R. E4. PAGE Oct. 7, 1930.

AUTOMATIC SPEED CHANGING DEVI-CE `FOR TABULATING MACHINES Filed June.25. 1925 4 Sheets-Sheet 4 l l I y gunna/dm I f @2543' @WCM/u@ 1/Patented Oct'.` 7, 1930 UNITED STATES PATENT oli-"Freier RALPH E. PAGE,OF BIN GHAMTON NEW YORK, ASSIGNOR T0 THE TAIBULATING MA- CHINE COMPANY;QF ENDICOTT, NEW YORK, A. CORPORATION F NEW JERSEY v transmissiondevices are l Uromric SPEED-CHANGING DEVICE ron TABULATING imcn'mnsApplication led J'une 28, 1925. Serial No. 38,977.'

This invention relates to improvements in tabulating machines andmoreparticularly relates to the driving means for these machines.

In certain tabulating machines now on the market provision is made fordrivin the tabulator at a comparatively low spee forlisting items and ata higher speed when the machine prints total entries and does not listindividual items. In certain of these'machines rovided which aremanually shiftable'to e ect a drive at one speed or another. Thetransmission shift devices are usually interlocked with the listnon-listlever of the tabulator to compel the pro er setting pf the transmissionin aczor ance with the setting of the list-non-list ever.

Other machines 'require that the first card cycle when the machine isset for tabulatin be performed at a relatively slow speed an psubsequently the remaining card cycles are eiected at the usual hightabulatin speed. Some machines 'of this type secure t ese results bymeans of two speed motors which ma be used either inconnection with orwit out a speed'changing transmission.

According to the present inventionk a trans- 'mission of special type isprovided intermediate the driving motor and the-tabulator and provisionis made for automatically controling this transmissionto secure higheror lower driving speeds according to the driving speed r uirements ofthe-ftabulator. Control of t e speed changing transmission 'is securedby control devices on the tabulating machine. Provision is made forautomatically controlling the transmissiontosecure high speed or lowspeeddrive thereby according to Whether thetabulator is tabulating orlisting and provision is also made for automaticall running thetabulator at low speed for the rst card cycle when the machine is setfor tabulating and` for subsequently changing the transmissionautomatically to drive the tabulator for the subsequent card cycles atthe higher and'normal tabulating speeds. Furthermore these results .aresecured by means of a single speed motor. AllV changes 0f driving speed.of the tabulator are secured of the transmission. 4

Figs. 4* and 4b taken together represent the circuit diagram of atabulatpr incorporating the present improvements.

In more detail in the drawings, in Fig. v1v

and in the circuit diagram, the tabulator motor is re resented by theusual conventional symbol designated by T, and P is the pulley 0f thetabulator.

Referring, to Fig. 2, thetransmission in- M. The transmission isgenerally f y cludes a drive shaft 13 driven by the motor c TM in anysuitable manner. 20 is the driven shaft of the transmission carrying asuitable pulley 21 receiving the belt which cooperates with thetabulator pulley P. The transmission broadly may be said to be of thedifferential planetary type. Control of speed changes in thetransmission -is obtained accdrding -to whether or not a magnet winding22 is energized or not. This magnet when energized is adapted to draw anarmature or shoe member 10 to the right from the position shown. \Fig.2shows the parts with the magnet 22 deenergzed and with the parts .of thetransmission in proper position for driving the tabulator at relativelylow speed. With 22 deenergized the shoe member 10 is held in theposition to the lef-t as .shown in cooperation with the brake or4 clutchmember 11" whicE is lixed against rotation by being fastened tothecasing of the transmission. The parts are held in this position by meansof spring 12. The drive from shaft 13 to 20 iiow is as follows: Shaftv13 rotates rotating with it a spider14. A gear 15 which is integralwith a sleeve 16 isheld stationary and against rotation inasmuch'asthe-sleeve 16 is keyed to the armature member 1Q which at asy Y' thistime is stationary. With gear 15 stationary, drive is `secured throughgears 17-18, toa gear 19 -fast on the end of shaft 20. Itwillbeunderstood that gears 17 and 18 are of different diameter androtatearolmd with the s ider 14. In this way-the driving.

pulley' v21 is rotated at vlow speed. Y

For h igh s 4drive, immature l10 is drawn7 to the right y theenergization of magnet 22 and when in thisl "tion is held aghinst fabrake shoe or -cliitc member 23. This brake shoe or clutch member 23 issuitably slotted to receive a member 24vwhich is fitted to the y 'istion. The tabulator includes the usual pins 25 carriedlby yspider 14.When 10 isV to 'the right and in cooperation with clutch shoe 28 gear15, lsleeve 16, armature ine'mber 10, member 23.and pins 25 are allunited togetherwiththe result'that direct drive is secured from 13 to 20driving 20 and pulley 21 nated GI-5 is serially dispod in a lineincluding thei transmissioncontrolling magnet 22. Other contactscontrolled by the oup indicator magnet arethose designated I-8.

Thesecontacts are so controlled bv the group indicatorzmagnet 92 as toopen after theiirst cardcycle when the group indicatormagnet92 r becomesenergized. The contacts GI-8 are l alwaysclosed during listingoperations. `Con tacts IJ-3 are disposed in thecircuit tothe groupindicator magnet 92 and are also dispose in a circuit extending tobinder post 12-and including contacts Z -2.' -Contacts Z-2'areclosedcfor tabulating and open when listing. These contacts arecontrolled b the list-nn-list lever of the tabulator; Y much as'contacts Z-2 are held open at all.

times 'during listing operations the ma et 92will not become energizedat an time uring the' cle either before orafterthe first card cycle.listing the contacts GI-5 will remain open,

` magnet 22 will remain deenergized and, conuently, the transmissionwill beso contro led as to run the machine at the relative' ly slowerlisting speed. When the machine. ating contactsV Z-2 will be is set fortabu closed. Then upon the end of the first ,card

cycle cam contacts L-B `will 'close' andbring;

about the energizatioii of group gindicator 'beeno nire no furtherdescription.` It A Achine is set for ta ulati :printing ma ets. and highspeed'driving con'- .Y

erefone when the machine isset for` tios' in said transmission.

magnet 92. Energization' of 92 will -close contacts Gli-45 and thusbring about theen ergization of transmission control magnet 22. Afterthis magnet has become ene y aed the machine will continue to run at thei l ertabulatin speed. Colmacts GI -5 haviig pene during. the .firstcard cycle `the machine will -run atnelatively. lower speed during thetabulation. of the first card the I v The only other contacts which arenesesllthOS ALV .-I GI-8- These contacts open after the l .stcard cyclewhen the group indicatorl magnet'92 is energized and they also remainclosed when the machine is set for listing. /Tlieae'v contacts GI-8are'employed for establishing a supply of current to the printermagnetsat all times when the machine is set for listing and also durin,the first card cle when the 85 machine is set or tabulating. thiswaytheY group `number ma be printed when the ma For total printing othercontacts contro the circuits-to the Contacts 'f arecontacts. which-'dreclosed as shown 'during listing operations* and open during tabulatingoperations. What I claim is :--V 1. ing ta ulating' devi ces, a drivingmeans therefor and a speed changingy transmission v driven by saiddriving means and having provisions for drivingrthe said tabulatoratvarious speeds, and means responsiveto the i type of operationperformed by the tbulating devices for automatically changing the' d.driving ratios of' said transmission Aevice.

2. In a tabulating 'machine -ini'udngf'in m, combination with atabulator' and driving devices' therefor, atransmission device'intermediatesaid'rlrivin devices andd the said tabulator, and means orautomatically controlling 'the' eifectivity of said; transmission l.

device controlled in accordance with the`type of operation performed bythe tabulator to drive the latter at high speed during high i speedcycles, and td drive the tabulator at lower cycles. v

3. In wrecord controlled machine-includi'iig'tabulating devices and adrivingmeans ',therefor, a s

Atermediate t e tabulatorand driyin'g means` changing transmission inf.I

Vfor driving the former at various speeds and means controlled inaccordance with the type` of operation performed by said tabulator for'automatically changing the speed drive ra- 4. In a record Y ntrolledmachine includ-v l ing tabulating devices and a driving means ,Ytherefor, a speed changing transmission in'- termediate the tabulatorand driving means for driving the former et various speeds and always na record controlledmachine incliid-A 5 speed for lower speed tabulatingu.

means controlled in accordance with the type of o eration performed by,the tabulator for esta lishing automatically high or low speed drivingconditions in said transmission whereby the tabulator is driven at highor low speed in accordance with the status of the control means in thetabulator.

5. In a record controlled machineinclud-v ing tabulating devices and adriving means therefor, a speed changing transmission intermediate thetabulator and driving means for driving the former at various speeds andmeans controlled in accordance with the type of operation performed' bythe tabulator for' automatically controlling said transmission andeffecting thereby 'a relatively low `driving speed for the first cardcycle and for thereafter automatically establishing in said transmissiona relatively higher driving speed for the'tabulator during subsequentcard cycles.

6. In a record controlled machine including tabulating devices and adriving means therefor, a` speed changing transmission intermediate thetabulatorand driving means for driving the former at various speeds andmeans controlled in accordance 'with the ty of operation performed by.`the 'tabulator fidi' automatically controlling said transmission and forelecting thereby a relatively low driving s d for the tabulator when thelatter is set or listing-and for effecting thereby A. a relativelyhigher speedof drive for the tabulatorwhen the latter is tabulatingitems and printing only the totals thereof.

7. In a record controlled printed tabulator includin a shifting devicefor selectin ing or ta ulatingoperation of said-tabu ator, a

riving mechanism and 'a speed changing transmission intermediatee saiddriving mechanism and said tabulator and means re-v sponsive to the typeof operationv performed .by the tabulator and controlled by said shift-sing device` for automatically selectinga low speed ratio for saidtransmission durin listin operations and a high speed ratio uring taulating.

8. In a record'controlled printing tabulator includin a shifting devicefor selecting listing or ta ulating o ration of` said tabulator andmeans'for printing data during the first cycle of tabulating, a drivingmechanism and a speed ,changing transmission intermediate said drivingmechanism and said Vtabulator, means controlled b said lshifting devicefor automatically se ecting p alow speed ratio for said transmissionduring listing operations and means controlled conjointly by saidshifting device and said tabulator for automatically selecting a lovvvspeed ratio for the transmission during .the initial cycle of tabulatingoperations and thereafter a high speed ratio for Ithe subsequenttabulatin cycles.

9. In a' recor controlled printing tabula-' tor, controlling mechanismIfor selecting tabulating operations involving printing or tabulatingoperations without printing a driving mechanism and a spee changingtransmission intermediate 4said driving -mechanism Vand saidtabnlatorand means controlled-in accordance with the \type of operationperformed by said tabulator for automatically selecting a low speedratio fory said transmission during printing cycles and a high speedratio during straight tabulating cycles.

V1() In a record controlled printing tabulator, controlling mechanismfor 'selecting tabulating operations involving" printing or tabulatingoperations without printing, drivingmechanism for said tabulator andatwo-aspeed transmission intermediate said driving mechanism and saidtabulator, said transmission comprising 'means normally biasing'v it.for lowspeed operation suitable for printing operations and meanscontrolled by said tabulatorV for yieldably setting said transmissionforv high speed operationduring tabulating cycles without printing.

11. Ina record controlled printingtabulator including controlling meansfor selecting tabulating operation involving printin or tabulatingoperation withoutprinting, riving mechanism and a two speed transmissionintermediate said driving mechanism and tabulator, said transmissionincluding electromagnetic means for selecting the various s `ed'ratioisthereof, a control circuit for said v e ectroma etic means and meanscontrolled `by said' ta ulator for selectively controlling ratio foroperations not intab'ulator and a twov speed ltransmission interroupindicating control rations' involving printing mediate-said drivingmeans and said tabulator and means controlled by vsaid group indicatingmechanism for selecting a lowl speed ratiofor said transmission duringthe initial lll cycle oftabulator operation and thereafter a highsratio. t

13. 11 -a record' controlled printingstabulator including roupindicating control mechanismfor e ecting rinting of'group.

desi atingl data during t e initial c Ycle of tabu ating operations',driving means or said tabulator anda two-speed transmission'intermediate said driving means and said tabulator, said transmissioncomprising an electromagnetic device for selecting a high or Y low speeddriving ratio therefor, a control circuit for-,said electromagneticdevice including a circuit actuator controlled by said' "iso grouplindicating mechanism for governing l the energization of said circuit toautomaticall select a low speed driving ratio for the 'initial cycle andthereafter a high speed driving ratio.

vio

the first.

15. In a record controlled printin tabulater including tabulatinvdevices an printing devices and contro circuits therefor, driving meansfor said tabulator and a two 'speed transmission intermediate thedriving means and the tabulator, electromagnetic means controlled bythetabulator for controlling the printing control circuits to select itabulating operations with or without print. ing, and means controlledby said electro- 'a low speed ratio for said transmission durl ingcycles involving printing and al high i speed ratio during cycles notinvolving printl jlator including tabulating devices and printlim 'ingdevices and control circuits therefor,

driving means for said tabulato and a two speed transmissionintermediatethe driving means and the tabulator, a shiftin devicecomprising means for controllin said printing circuits to select listingor ta i'ilating operation of said tabulator, means automaticallycontrolled by said tabulator for control-- ling said printing circuitsto effect printing during the initial cycle of tabulating operationandmeans controlled 'ointly b said last named means rand said s ifftingdevice for selecting a low 'speed ratio for said-transmission duringprinting cycles and avhigh speed ratio during non-printing cycles.

ijn-1,890 t 'fmechanism including electromagnetic means forautomatically controlling said (printing circuits tociect print' ofgroup esignating data' during the initial cycle of tabulating operationsand nieans controlled jointly by said shifting' mechanism and said lastnamed-electromagnetic means for controlling said transmission controlcircuit to automaticallyselect a low s ed ratiofor said transmissionduring printing cycles and- 'a high nonriiiting,cycles.

speed ratio durin I ereo I hereto affix-my sigf In'vtestimony w nature.

`magnetic lmeans for automatically selecting 16,. Iii a recordcontrolled printing tabu- 'RALPH E. PAGE. j K f iwk los `17. In a"record lcontrolled printin tabuy lator including tabulatin devices anprinting devices and lcontro circuits. therefor,

driving means `for said Atabulator and 'a two speed transmissionintermediate the driving lmeans and the tabulator, said transmissionincluding electromagnetic means for selecting hi h or loili1 s eedratios therefor and a .y 'i

contro circuit or said electromagnetic means, a'lshiftin mechanismcomprising means for control 'ng said lprinting,circuits to selectlistingor tabulatng operation of slid bulator, indicatmg wntrolrl.. Y

